1. From the Clinic for Cardiovascular Surgery (D.S., A.A., B.M., H.G.-Z., A.L.), Clinic for Cardiology, Pneumology, and Angiology (R.W.), Heinrich-Heine University of Düsseldorf, Düsseldorf, Germany; Cameron Health Inc, San Clemente, CA (S.O.); and City University, London, United Kingdom (S.O.).